At 12:30 p.m. EDT Thursday afternoon an Enhanced Fujita Scale Zero
tornado occurred in Delaware, 10 kilometres southwest of London.
This is the weakest rating on the Enhanced Fujita Scale.

A damage survey team of engineers from Western University found that
four properties were affected. Some siding was removed from two
houses, a glass railing was broken and blown around the corner of a
house, a play structure was moved from one yard to another with the
trees between untouched, and a swirling pattern was observed in a
cornfield. Peak winds were estimated at 90 kilometres per hour.

The damage path was approximately 50 metres long and 10 metres wide.

Ontario has had four tornadoes confirmed so far this year. Ontario
averages 12 tornadoes each year in a season that runs from late
April until early October.

Please note that this summary may contain preliminary or unofficial
information and does not constitute a complete or final report.